5G is fifth-generation cellular wireless, succeeding the 4G LTE networks that we have been connecting .
In
5G technology, two kinds of frequency bands are classified. First are Sub-6 GHz
bands where the frequency transmitted from cell phone towers are less than 6GHz
frequency. This is very similar to 4G, where the frequencies transmitted from
cell phone towers are below 6GHz.
On
the other hand, the higher speeds that really set 5G apart from any of the 4G
LTE flavors require mmWave (millimeter wave, above 24GHz) high-frequency bands.
These high frequencies have very large bandwidths, so they are ideal for
keeping everyone connected in busy environments like stadiums.
So,
in 5G, these two types of frequency ranges have been defined as:
Frequency Range-1 (Sub-6 GHz,
less than 6GHz)
Frequency Range-2 (mmWave,
above 24GHz)
A sub-6 band, 5G technology will be able
to cover a larger geographical area for 5G coverage but will not be able to
provide higher speed downlink. But an mmWave 5G technology will be able to
provide class leading downlink speeds, but at the cost of less geographical
area coverage. Now you know the difference and will be able to understand the
network strategy of your carrier when you decide to switch over to 5G.
Jio Glass
is a Mixed Reality solution and is one of the announcements made by the
Reliance Industries Limited (RIL) at the 43rd Annual General Meeting (AGM) on
15 July.
It
is a HoloBoard Mixed Reality Headset, which had similar functionalities. You can connect the Jio Glass via your
smartphone which helps you make video calls and attend meetings in a 3D
holographic environment.
VoWiFi
or Voice over Wi-Fi calling is basically making calls using a Wi-Fi connection.
In essence, It is voice over IP (VoIP) over a Wi-Fi
network. It uses IEEE 802.11 wireless LANs based networks to
make Voice over IP (VoIP) calls. In simple terms, the feature will allow you to
make normal calls using Wi-Fi when you are in places with low or no network
signals.
VoWiFi can be
conducted over any Internet accessible device, including a
laptop, PDA units which look and function like DECT
and cellphones. Just like for IP-DECT, the VoWiFi's main advantagesto consumers are cheaper local and international calls, free calls to other
VoWiFi units and a simplified integrated billing of both phone and Internet service providers.
Although VoWiFi
and 3G
have certain feature similarities, VoWiFi is different in the sense that it
uses a wireless internet network (typically 802.11) rather than a cellular network. Both VoWiFi and 3G are used in different
ways, although with a femtocell the two can deliver similar service
to users and can be considered alternatives.
Reverse osmosis
(RO) is a water purification process that uses a partially permeable
membrane to remove ions, unwanted molecules and larger particles from drinking water.
Reverse osmosis removes contaminants from unfiltered water, or feed
water, when pressure forces it through a semipermeable membrane. Water flows
from the more concentrated side (more contaminants) of the RO
membrane to the less concentrated side (fewer contaminants) to
provide clean drinking water. The fresh water produced is called the permeate.
The concentrated water left over is called the waste or brine.
A semipermeable membrane has
small pores that block contaminants but allow water molecules to flow through.
In osmosis, water becomes more concentrated as it passes
through the membrane to obtain equilibrium on both sides. Reverse osmosis,
however, blocks contaminants from entering the less concentrated side of
the membrane. For example, when pressure is applied to a volume of saltwater
during reverse osmosis, the salt is left behind and only clean water flows
through.
How Does RO System Work?
A reverse
osmosis systemremoves sediment and chlorine from water
with a prefilter before it forces water through a semipermeable membrane to
remove dissolved solids. After water exits the RO membrane, it passes through a
postfilter to polish the drinking water before it enters a dedicated faucet.
What is UV Water Purifier?
In a UV water
filter system, UV (Ultraviolet) rays are used to kill the
harmful bacteria from the water. Hence the water is completely
disinfected from pathogens. UV water purifier is good for health because
it kills all the harmful microbes present in the water without affecting
the taste.
How Does UV Water
Purifier Works?
A UV water purifier exposes living
organisms, such as bacteria, viruses, or cysts (like Cryptosporidium and
Giardia) to a germicidal ultraviolet wavelength. With enough energy,
UV radiation at the 254-nm wavelength disrupts the DNA in pathogenic microorganisms
so they cannot reproduce. The ultraviolet light prevents bacteria
from spreading disease through drinking water.
UV dosage is the measurement of energy (in
mJ/cm²) delivered by a UV water purifier. The more dosage provided; the more
energy delivered to treat contaminated water. At a certain threshold, this
energy becomes sufficient to inactivate most of the microorganisms present in
water.
What is UF Water Purifier?
Ultrafiltration
(UF) is a membrane filtration process similar to Reverse Osmosis,
using hydrostatic pressure to force water through a semi-permeable
membrane. Speak with A Product Specialist.
How Does UF Water
Purifier Works?
Ultrafiltration uses hollow fibers of
membrane material and the feed water flows either inside the shell, or in the
lumen of the fibers. Suspended solids and solutes of high molecular weight are
retained, while water and low molecular weight solutes pass through the membrane.
Ultrafiltration is not fundamentally different from reverse osmosis,
microfiltration or nanofiltration, except in terms of the size of the molecules
it retains. When strategically combined with other purification technologies in
a complete water system, UF is ideal for the removal of colloids, proteins,
bacteria, pyrogens, proteins, and macromolecules larger than the membrane pore
size from water.
Benefits of UltraFiltration(UF)
No need for
chemicals (coagulants, flocculates, disinfectants, pH adjustment)
Size-exclusion
filtration as opposed to media depth filtration
Good and
constant quality of the treated water in terms of particle and microbial
removal
Process and
plant compactness
Simple
automation
Environmentally
friendly
What
is MF Water Purifier?
Micro Filtration (MF) / UV
Chamber which acts as an additional assurance of safety towards microbial
contaminants.
The Micro Filtration system also does not require electricity and
works with normal tap water pressure. It removes
all the suspended and visible impurities like mud, dirt, sand, rust
etc.…from the water.
The MF purifiers cannot remove dissolved salts or harmful metals
from the water and hence you will need a RO purifier if your TDS levels are
more.
A “CAPTCHA” is a Turing test to tell human and bots
apart. In other words, CAPTCHA determines whether the user is real or a spam
robot. It is easy for humans to solve, but hard for “bots” and other malicious
software to figure out.
reCAPTCHA is a free service from Google that helps
protect websites from spam and abuse. By adding reCAPTCHA to a site, you can
block automated software while helping your welcome users to enter with ease.
How Does a CAPTCHA Works?
CAPTCHAs were invented to block
spammy software from posting comments on pages or purchasing excess items at
once. The most common form of CAPTCHA is an image with several distorted
letters. It is also common to choose from a variety of images where you need to
select a common theme.
The internet and computers are made
up of a unique coding language. Computers find it difficult to understand
languages because of the strange and intricate rules human languages take on,
along with slang that humans use.
How CAPTCHA prevents Scammers
CAPTCHA has a variety of applications for keeping
websites and users secure. These include but are not limited to:
